server: replace carconnectivity with volkswagencarnet

Switches the VW API backend from carconnectivity + connector-volkswagen
to volkswagencarnet (local fork with the cariad-hybrid-auth-fix patch
applied), fixing authentication against the current CARIAD BFF endpoints.

- requirements.txt: point at local volkswagencarnet git repo via
  git+file:// URL (editable path no longer needed now the patch is
  committed there)
- we_connect.py: rewrite around the async volkswagencarnet Connection
  class; a persistent asyncio event loop held in _Session lets the rest
  of the code stay synchronous
- data_model.py: remap all extractors to volkswagencarnet Vehicle
  properties and Paths constants; output shape preserved so
  apply_procedural and the GUI client continue to work unchanged
- collect.py: swap carconnectivity error import, drop
  TemporaryAuthenticationError (no equivalent), fix vehicle.vin.value →
  vehicle.vin

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/collect.py

@@ -10,7 +10,7 @@ from .data_model import ALL_DOMAINS, collect_snapshot, apply_procedural
 from .storage_helpers import auto_out_path, load_last_24h_records, load_store, save_store
 from jaydiff.diff import diff_full as jay_diff_full
 
-from carconnectivity.errors import AuthenticationError, TemporaryAuthenticationError
+from volkswagencarnet.vw_exceptions import AuthenticationError
 
 log = logging.getLogger(__name__)
 
@@ -26,18 +26,18 @@ def run(args: argparse.Namespace) -> None:
         sys.exit(1)
 
     if args.dry:
-        log.info("Dry-run mode — skipping CarConnectivity login")
+        log.info("Dry-run mode — skipping volkswagencarnet login")
         wc = None
         vehicle = None
         vin = args.vin or "UNKNOWN"
     else:
-        log.info("Connecting via CarConnectivity…")
+        log.info("Connecting via volkswagencarnet…")
         wc = we_connect.connect(args.username, args.password)
         vehicle, err = we_connect.select_vehicle(wc, args.vin)
         if err:
             log.error(err)
             sys.exit(1)
-        vin = vehicle.vin.value
+        vin = vehicle.vin
 
     log.info("Vehicle: %s", vin)
 
@@ -98,7 +98,7 @@ def run(args: argparse.Namespace) -> None:
                     log.info("Record #%d saved at %s", len(store["records"]), snapshot["ts"])
                 except KeyboardInterrupt:
                     raise
-                except (AuthenticationError, TemporaryAuthenticationError):
+                except AuthenticationError:
                     log.warning("Authentication error — will retry at next interval")
                 except Exception:
                     log.exception("Collection failed — will retry at next interval")

server/data_model.py

@@ -2,68 +2,83 @@ import logging
 from collections.abc import Callable
 from datetime import datetime, timezone
 
+from volkswagencarnet.vw_const import Paths
+from volkswagencarnet.vw_utilities import find_path
+
 log = logging.getLogger(__name__)
 
 
 # ── value helpers ─────────────────────────────────────────────────────────────
 
-def _str(attr) -> str:
-    """Return the string value of a CarConnectivity attribute."""
-    return str(attr)
-
-
 def _phys(value, unit: str) -> dict:
     return {"value": value, "unit": unit}
 
 
-def _remaining_min(estimated_date_reached_attr) -> float | None:
-    """Compute remaining minutes from an estimated_date_reached DateAttribute."""
-    edr = estimated_date_reached_attr.value
-    if edr is None:
-        return None
-    return max(0.0, (edr - datetime.now(timezone.utc)).total_seconds() / 60)
-
-
 # ── domain extractors ─────────────────────────────────────────────────────────
 
 def extract_charging(vehicle) -> dict | None:
     result: dict = {}
 
     try:
-        ch = vehicle.charging
-        result["state"] = _str(ch.state)
-        result["type"] = _str(ch.type)
-        try:
-            result["power"] = _phys(ch.power.value, "kW")
-        except Exception:
-            pass
-        try:
-            rem = _remaining_min(ch.estimated_date_reached)
-            if rem is not None:
-                result["remain"] = _phys(round(rem), "min")
-        except Exception:
-            pass
-
+        result["state"] = vehicle.charging_state
     except Exception:
-        log.debug("vehicle.charging unavailable", exc_info=True)
+        log.debug("charging.state unavailable", exc_info=True)
 
     try:
-        cfg = vehicle.charging.settings
-        result["settings"] = {
-            "target_level": _phys(cfg.target_level.value, "%"),
-            "maximum_current": _phys(cfg.maximum_current.value, "A"),
-            "auto_unlock": _str(cfg.auto_unlock),
-        }
+        if vehicle.is_charger_type_supported:
+            result["type"] = vehicle.charger_type
     except Exception:
-        log.debug("vehicle.charging.settings unavailable", exc_info=True)
+        pass
 
     try:
-        conn = vehicle.charging.connector
-        result["plugStatus"] = {
-            "connection_state": _str(conn.connection_state),
-            "lock_state": _str(conn.lock_state),
-            "external_power": _str(conn.external_power),
-        }
+        power = vehicle.charging_power
+        if power is not None:
+            result["power"] = _phys(power, "kW")
+    except Exception:
+        log.debug("charging.power unavailable", exc_info=True)
+
+    try:
+        remain = vehicle.charging_time_left
+        if remain is not None:
+            result["remain"] = _phys(remain, "min")
+    except Exception:
+        log.debug("charging.remain unavailable", exc_info=True)
+
+    settings: dict = {}
+    try:
+        target = vehicle.battery_target_charge_level
+        if target is not None:
+            settings["target_level"] = _phys(target, "%")
+    except Exception:
+        pass
+    try:
+        max_a = vehicle.charge_max_ac_ampere
+        if max_a is not None:
+            settings["maximum_current"] = _phys(max_a, "A")
+    except Exception:
+        pass
+    try:
+        auto_unlock = vehicle.auto_release_ac_connector_state
+        if auto_unlock is not None:
+            settings["auto_unlock"] = auto_unlock
+    except Exception:
+        pass
+    if settings:
+        result["settings"] = settings
+
+    try:
+        plug: dict = {}
+        conn_state = find_path(vehicle.attrs, Paths.PLUG_CONN)
+        if conn_state is not None:
+            plug["connection_state"] = conn_state
+        lock_state = find_path(vehicle.attrs, Paths.PLUG_LOCK)
+        if lock_state is not None:
+            plug["lock_state"] = lock_state
+        ext_pwr = find_path(vehicle.attrs, Paths.PLUG_EXT_PWR)
+        if ext_pwr is not None:
+            plug["external_power"] = ext_pwr
+        if plug:
+            result["plugStatus"] = plug
     except Exception:
         log.debug("plugStatus unavailable", exc_info=True)
 
@@ -74,40 +89,39 @@ def extract_climatisation(vehicle) -> dict | None:
     result: dict = {}
 
     try:
-        cl = vehicle.climatization
-        result["state"] = _str(cl.state)
-        try:
-            rem = _remaining_min(cl.estimated_date_reached)
-            if rem is not None:
-                result["remain"] = _phys(round(rem), "min")
-        except Exception:
-            pass
+        state = vehicle.climatisation_state
+        if state is not None:
+            result["state"] = state
     except Exception:
-        log.debug("vehicle.climatization unavailable", exc_info=True)
+        log.debug("climatisation.state unavailable", exc_info=True)
 
     try:
-        cs = vehicle.climatization.settings
-        result["settings"] = {
-            "target_temperature": _phys(cs.target_temperature.value, "degC"),
-        }
+        remain = vehicle.electric_remaining_climatisation_time
+        if remain is not None:
+            result["remain"] = _phys(remain, "min")
     except Exception:
-        log.debug("climatization.settings unavailable", exc_info=True)
+        pass
 
     try:
-        wh = vehicle.window_heatings
-        result["window_heatings"] = {
-            name: _str(win.heating_state)
-            for name, win in wh.heatings.items()
-        }
+        target = vehicle.climatisation_target_temperature
+        if target is not None:
+            result["settings"] = {"target_temperature": _phys(target, "degC")}
     except Exception:
-        log.debug("vehicle.window_heatings unavailable", exc_info=True)
+        log.debug("climatisation.settings unavailable", exc_info=True)
 
     try:
-        result["environment"] = {
-            "temperature_outside": _phys(vehicle.outside_temperature.value, "degC"),
-        }
+        window_status = find_path(vehicle.attrs, Paths.CLIMATISATION_WINDOW_HEATING_STATUS)
+        if window_status:
+            heatings: dict = {}
+            for entry in window_status:
+                loc = entry.get("windowLocation")
+                state = entry.get("windowHeatingState")
+                if loc and state is not None:
+                    heatings[loc] = state
+            if heatings:
+                result["window_heatings"] = heatings
     except Exception:
-        log.debug("vehicle.outside_temperature unavailable", exc_info=True)
+        log.debug("window_heatings unavailable", exc_info=True)
 
     return result or None
 
@@ -116,23 +130,45 @@ def extract_electric_drive(vehicle) -> dict | None:
     result: dict = {}
 
     try:
-        ed = vehicle.get_electric_drive()
-        result["range"] = _phys(ed.range.value, "km")
-        result["range_full"] = _phys(round(float(ed.range_estimated_full.value), 1), "km")
-        try:
-            bat = ed.battery
-            result["battery"] = {
-                "soc": _phys(ed.level.value, "%"),
-                "temperature_max": _phys(round(float(bat.temperature_max.value) - 273.15, 1), "degC"),
-                "temperature_min": _phys(round(float(bat.temperature_min.value) - 273.15, 1), "degC"),
-            }
-        except Exception:
-            log.debug("electric_drive/battery unavailable", exc_info=True)
+        rng = vehicle.electric_range
+        if rng is not None:
+            result["range"] = _phys(rng, "km")
     except Exception:
-        log.debug("electric_drive unavailable", exc_info=True)
+        log.debug("electric_range unavailable", exc_info=True)
 
     try:
-        result["odometer"] = {"odometer": _phys(vehicle.odometer.value, "km")}
+        rng_full = vehicle.battery_cruising_range
+        if rng_full is not None:
+            result["range_full"] = _phys(round(float(rng_full), 1), "km")
+    except Exception:
+        log.debug("battery_cruising_range unavailable", exc_info=True)
+
+    battery: dict = {}
+    try:
+        soc = vehicle.battery_level
+        if soc is not None:
+            battery["soc"] = _phys(soc, "%")
+    except Exception:
+        log.debug("battery.soc unavailable", exc_info=True)
+    try:
+        tmax = vehicle.hv_battery_max_temperature
+        if tmax is not None:
+            battery["temperature_max"] = _phys(round(tmax, 1), "degC")
+    except Exception:
+        pass
+    try:
+        tmin = vehicle.hv_battery_min_temperature
+        if tmin is not None:
+            battery["temperature_min"] = _phys(round(tmin, 1), "degC")
+    except Exception:
+        pass
+    if battery:
+        result["battery"] = battery
+
+    try:
+        odo = vehicle.distance
+        if odo is not None:
+            result["odometer"] = {"odometer": _phys(odo, "km")}
     except Exception:
         log.debug("odometer unavailable", exc_info=True)
 
@@ -143,32 +179,43 @@ def extract_connectivity(vehicle) -> dict | None:
     result: dict = {}
 
     try:
-        state = str(vehicle.connection_state)
-        result["state"] = state
+        is_online = vehicle.connection_state_is_online
+        is_active = vehicle.connection_state_is_active
+        if is_online:
+            result["state"] = "online"
+        elif is_active:
+            result["state"] = "active"
+        else:
+            result["state"] = "offline"
     except Exception:
         log.debug("connectivity.state unavailable", exc_info=True)
 
     return result or None
 
+
 def extract_vehicle(vehicle) -> dict | None:
     result: dict = {}
 
     try:
-        state = str(vehicle.state)
-        result["state"] = state
+        overall = find_path(vehicle.attrs, Paths.ACCESS_OVERALL_STATUS)
+        if overall is not None:
+            result["state"] = overall
     except Exception:
         log.debug("vehicle.state unavailable", exc_info=True)
 
     return result or None
 
+
 def extract_position(vehicle) -> dict | None:
     result: dict = {}
 
     try:
         pos = vehicle.position
-        result["lat"] = pos.latitude.value
-        result["lon"] = pos.longitude.value
-
+        lat = pos.get("lat")
+        lng = pos.get("lng")
+        if lat is not None and lat != "?" and lng is not None and lng != "?":
+            result["lat"] = lat
+            result["lon"] = lng  # volkswagencarnet uses "lng" internally; we keep "lon" for compat
     except Exception:
         log.debug("position unavailable", exc_info=True)
 
@@ -179,20 +226,29 @@ def extract_doors(vehicle) -> dict | None:
     result: dict = {}
 
     try:
-        doors = vehicle.doors
-        if doors.lock_state.value is not None:
-            result["lock_state"] = _str(doors.lock_state)
-        if doors.open_state.value is not None:
-            result["open_state"] = _str(doors.open_state)
-        door_entries = {}
-        for name, door in doors.doors.items():
-            entry = {}
-            if door.lock_state.value is not None:
-                entry["lock_state"] = _str(door.lock_state)
-            if door.open_state.value is not None:
-                entry["open_state"] = _str(door.open_state)
+        lock_state = find_path(vehicle.attrs, Paths.ACCESS_DOOR_LOCK)
+        if lock_state is not None:
+            result["lock_state"] = lock_state
+
+        doors_list = find_path(vehicle.attrs, Paths.ACCESS_DOORS) or []
+        door_entries: dict = {}
+        all_closed: bool | None = None
+        for door in doors_list:
+            name = door.get("name")
+            status = door.get("status") or []
+            if not name:
+                continue
+            entry: dict = {}
+            if "closed" in status or "open" in status:
+                open_state = "closed" if "closed" in status else "open"
+                entry["open_state"] = open_state
+                all_closed = open_state == "closed" if all_closed is None else (all_closed and open_state == "closed")
+            if "locked" in status or "unlocked" in status:
+                entry["lock_state"] = "locked" if "locked" in status else "unlocked"
             if entry:
                 door_entries[name] = entry
+        if all_closed is not None:
+            result["open_state"] = "closed" if all_closed else "open"
         if door_entries:
             result["doors"] = door_entries
     except Exception:
@@ -205,12 +261,20 @@ def extract_windows(vehicle) -> dict | None:
     result: dict = {}
 
     try:
-        if vehicle.windows.open_state.value is not None:
-            result["open_state"] = _str(vehicle.windows.open_state)
-        window_entries = {}
-        for name, win in vehicle.windows.windows.items():
-            if win.open_state.value is not None:
-                window_entries[name] = {"open_state": _str(win.open_state)}
+        windows_list = find_path(vehicle.attrs, Paths.ACCESS_WINDOWS) or []
+        window_entries: dict = {}
+        all_closed: bool | None = None
+        for win in windows_list:
+            name = win.get("name")
+            status = win.get("status") or []
+            if not name or "unsupported" in status:
+                continue
+            if "closed" in status or "open" in status:
+                open_state = "closed" if "closed" in status else "open"
+                window_entries[name] = {"open_state": open_state}
+                all_closed = open_state == "closed" if all_closed is None else (all_closed and open_state == "closed")
+        if all_closed is not None:
+            result["open_state"] = "closed" if all_closed else "open"
         if window_entries:
             result["windows"] = window_entries
     except Exception:

server/requirements.txt

@@ -1,3 +1,2 @@
-carconnectivity
-carconnectivity-connector-volkswagen
+volkswagencarnet @ git+file:///home/jens/work/repos/volkswagencarnet
 jaydiff @ git+http://192.168.22.90:3001/jayfield/jaypy.git

server/we_connect.py

@@ -1,52 +1,64 @@
+import asyncio
 import logging
-import sys
 
-try:
-    from carconnectivity.carconnectivity import CarConnectivity
-except ImportError:
-    print(
-        "carconnectivity is not installed.  Run:  "
-        "pip install carconnectivity carconnectivity-connector-volkswagen",
-        file=sys.stderr,
-    )
-    sys.exit(1)
+import aiohttp
+from volkswagencarnet.vw_connection import Connection
+from volkswagencarnet.vw_exceptions import AuthenticationError  # noqa: F401 — re-exported for collect.py
 
 log = logging.getLogger(__name__)
 
 
-def connect(username: str, password: str) -> CarConnectivity:
-    config = {
-        "carConnectivity": {
-            "connectors": [
-                {
-                    "type": "volkswagen",
-                    "config": {
-                        "username": username,
-                        "password": password,
-                    },
-                }
-            ]
-        }
-    }
-    cc = CarConnectivity(config=config)
-    cc.startup()
-    cc.fetch_all()
-    return cc
+class _Session:
+    """Holds the asyncio event loop, aiohttp session, and Connection together."""
+
+    def __init__(
+        self,
+        loop: asyncio.AbstractEventLoop,
+        session: aiohttp.ClientSession,
+        connection: Connection,
+    ) -> None:
+        self._loop = loop
+        self._http_session = session
+        self.connection = connection
+
+    def run(self, coro):
+        return self._loop.run_until_complete(coro)
+
+    @property
+    def vehicles(self):
+        return self.connection.vehicles
 
 
-def select_vehicle(cc: CarConnectivity, vin: str | None):
+def connect(username: str, password: str) -> _Session:
+    loop = asyncio.new_event_loop()
+    asyncio.set_event_loop(loop)
+
+    async def _do():
+        session = aiohttp.ClientSession(headers={"Connection": "keep-alive"})
+        conn = Connection(session, username, password)
+        ok = await conn.doLogin()
+        if not ok:
+            await session.close()
+            raise AuthenticationError("Login failed")
+        return session, conn
+
+    session, conn = loop.run_until_complete(_do())
+    return _Session(loop, session, conn)
+
+
+def select_vehicle(wc: _Session, vin: str | None):
     """Return (vehicle, error_message). error_message is None on success."""
-    vehicles = list(cc.get_garage().list_vehicles())
+    vehicles = wc.vehicles
     if not vehicles:
-        return None, "No vehicles found in this CarConnectivity account"
+        return None, "No vehicles found in this account"
     if vin:
-        vehicle = next((v for v in vehicles if v.vin.value == vin), None)
+        vehicle = next((v for v in vehicles if v.vin == vin), None)
         if not vehicle:
-            available = [v.vin.value for v in vehicles]
-            return None, f"VIN {vin} not found.  Available: {available}"
+            available = [v.vin for v in vehicles]
+            return None, f"VIN {vin} not found. Available: {available}"
         return vehicle, None
     return vehicles[0], None
 
 
-def update(cc: CarConnectivity) -> None:
-    cc.fetch_all()
+def update(wc: _Session) -> None:
+    wc.run(wc.connection.update())